document.write( "Question 73071: Use the geometric sequence of numbers 1,2,4,8,... to find the following What is r, ratio between 2 consecutive terms? show work
\n" ); document.write( "Using the formula for the nth term of a geometric sequence, what is the 24th term? show work
\n" ); document.write( "Using the formula for the sum of a geometric series, what is the sum of the first 10 terms? show work
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Algebra.Com's Answer #52332 by jim_thompson5910(35256)\"\" \"About 
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The ratio r is the factor to get from term to term. So
\n" ); document.write( "r=nth term/(n-1) term
\n" ); document.write( "\"r=8%2F4=2\"
\n" ); document.write( "\"r=2\"
\n" ); document.write( "The sequence doubles each term, so the sequence is \"2%5En\"
\n" ); document.write( "So the 24th term is
\n" ); document.write( "\"2%5E23=8388608\"(n=23 zero is the 1st term)
\n" ); document.write( "The sum of a geometric series is
\n" ); document.write( "\"S=a%281-r%5En%29%2F%281-r%29\"where a=1
\n" ); document.write( "\"S=%281-2%5E10%29%2F%281-2%29\"
\n" ); document.write( "\"S=%281-1024%29%2F%28-1%29\"
\n" ); document.write( "\"S=1023\"
\n" ); document.write( "So the sum of the first ten terms is 1,023\r
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